Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dce2dbe63f52d2b…

MALICIOUS

PDF

70.1 KB Created: 2021-02-07 23:50:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 02ab52408fa2a3aa3c1ee3c000d7cf5c SHA-1: a1975da9561379be7d8a7cc0d435cdfb2357d194 SHA-256: 7dce2dbe63f52d2bf9b35c3de9e48931fe8211368fcfffc5bb850f6ffb3c98e8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://bologen.ru/wb?keyword=hyundai%20elantra%20touring%202012%20manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475572/normal_6019522e54cc9.pdfIn PDF document text
    • http://vwwv-avito.online/nikusuwofogoofruu.pdfIn PDF document text
    • https://wusitezuredov.weebly.com/uploads/1/3/5/3/135314125/narexipa_galejevovole_fizavutosavij.pdfIn PDF document text
    • http://dragonflysagewellness.com/fovalutogawuloditedgpcr1.pdfIn PDF document text
    • http://sy0n.icu/56078720452ne373.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/hjNjhmV/youtube_top_100_music_hits_2010.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378856/normal_60145820c1763.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxokakijefe/hjhdvia/the_wolf_of_snow_hollow_dvd_release_date.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/gcgdpmY/fusatudelekarune.pdfIn PDF document text
    • https://wotigutaz.weebly.com/uploads/1/3/4/3/134361511/3df250be.pdfIn PDF document text
    • https://cdn.sqhk.co/woferomot/heMbgja/xawoxolubotofen.pdfIn PDF document text
    • http://dietnatur.fun/labugusufaramasesageturjol3i.pdfIn PDF document text
    • http://ifeelgood.club/airplane_mobile_ald4k2n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426558/normal_60004972c256f.pdfIn PDF document text
    • http://1freedom.space/tokutozusadazufujutudxsyu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD765 5356 bytes
SHA-256: b61752813b4858b137c93ee68ff43c3207c35e14304736c5939b931f91f140e8
font_01_sfnt_off0000e98e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE98E 10032 bytes
SHA-256: 1c741ab4356dbe6e829e146251ed9e048488510075662f7e436da62081fb0daf